Improved railway-kail chair



D. C. PI'IRC-.. RAILWAY RAIL CHAIR.

No. 95,041.V` PatentedASep-t 21, 18169..'Y

m PE1-:ns co.. moro-uma., WASHINGTON n4 c.

. anni sans mi eine.

Leners Patent No. 95,041, and satema 21,1869; ameland squatter 8,1869;

nlirnovnn RAILWAY-nmz. cnam.

The Schedule referred to in these Letters Patent and making part of' the same.

to which my invent-ion appertains, to make and use .the same, reference being had to' the accompanying drawings, making part of this specification, in which- Figure 1 is a side view of iny improved chair, ap- 'plied to a rail;

Figures 2 and 3 are llongitudinal sections of modifications of the same;

`Figuretis a similar view to fig. 1, showing the flanges of the rail, resting in the jaws of the checks, without the supporting-plate;

Figure 5 is a plan view of fig. 3; and

Figure 6 isa side elevation of my improved f chair, as constituting a fishjoint. j

Similar letters of' reference'indicate like parts in the several parts.

The object of my invention is to' preventthe joints 4of railroad-rails from unequal deflection' under the weight of passing trains, and, at the same time, to compensate for the wearand decay of the metallic .surfaces brought in Acontact with each other, and alsothe contraction and expansion of 4the metal, under the influence of heat and cold.

It has further for its object, toprodnce a chair, which shall be tightenedupon the flanges' of' therails,

under the weight ofthc-passing trains, and, at. thee same time, produce a'yielding and elastic joint, to prevent concussion and sudden jars.- Its object is further'to form 'ascii-locking; cha-ir or joint, which can be applied to the rail in the most. simple manner, wit-hout the usefof' bolts'and nuts, and.

locked in position by the weight of the first train pass? ing o'ver it.' Y

l The in ventiouconsists in applying the rail-'supports to the chair in the arc of a circle, 'withconvex inner surfaces on the chair, and corresponding forms of checks.

' The accompanying drawings-shmv several different forms of' reducing my invention to practice, but others might b e supplied, without departing from the principles therein contained.

A is a metallic chair, either wrought or cast, with upward projecting jaws B formedin the arc of a circle.

Gare the checks or jaws, which are out out longitudinally at a, to clasp the flanges of the rail D. The outer sides of these chocks are cursed transversely, te

correspond with the curvature of' the inner laces of the jaws B of the chair.

The chocks C are applied to the chair in such a manner as to hold the flanges of the rail above the centre of4 the circle vdescribed by the jawsl B, and the lower sides of the chucks should he raised above the baschi' the chair a corresponding distance, whereby,- as the rails are depressed by the weight of a passing train, the chocks will move toward each other until the flanges of the rail are in line with the centre of' .tl1e"circle, at which point the chocks, following the curvatnreof the chair, will have their lower edges directed outward or away from each other, and their up` per ribs or jaws C toward each thcr, and resting upon the upper side ofthe flanges of the rail, which is thus clamped firmly in position.

ends equally, and that consequently, when the weight ofthe train is upon one rail only, or between the ties, `snchweight is communicated to all parts-of the checks alike, causing them to deflect the ends of the raileqnally, and to prevent the -blows of the car-wheels breaking and destroying them.

When the checks are first applied, 4they are slipped over the flanges of' the rail and. dropped into the chair, the first train passing over them will lock them firmly in position, and as they move in a circular direction, theyI can be' displaced only by wedging them from underneath, the wearing of the metallic surfaces, instead of loosening the chocks, and renderingthe chair rworthless, will produce more perfect contact, and as fhechocksaud chair move together, the injury usually ferent temperatures, is avoided. In 'some instances the flanges of old rails'are somewhatbroken, or otherwise weakened, and to furnish a Itl this modification, strips of wood, e, or other elastic material are inserted between the curved inner faces of the jaws B and loose curved plates-f, for the purpose 'of imparting greater ,elasticity to` the chair.

Fig. 6 shows 'my invention applied to fish-joints.

In this case thc checks are made of' sufcient length i ,lr

It will be observed that the chocks movefat bothv resulting from expansion and contraction, under diffirm and strong bearing-surface, upon the lower jaws 'to extend from one tie to the other, upon which the 2. In combination with such chair, abearing-plate,

chairs are placed, in order to connect the ends of the applied and operating substantially as' described, and

rails between the ties. for the purposes setforth.

Havingr thus described my invention, 3. In like combination, elastic packing, applied and What I claim as new, and desire to secure by Letoperating substantially as described, and for, the vpurters Pat-ent, isposes set forth.

1. A railway chair, having inner convex surfaces, D. C. PIERGE. and chocks with corresponding concavities, all con- Witnesses: structed and operating together substantially as de- L. J. FARWELL, scribed, and for the purposes' set forth. GEO. A. MATILE. 

